Same problem on IBM Thinkpad T20 hangs on poweroff or shutdown from 6.10 live cd or 6.10 hd install
$ uname -a Linux ubu 2.6.17-11-generic #2 SMP Thu Feb 1 19:52:28 UTC 2007 i686 GNU/Linux $ lshal smbios.bios.release_date = '12/21/1999' (string) smbios.bios.version = 'IYET61WW (1.22 )' (string) smbios.bios.vendor = 'IBM' (string) TEMP FIX if your BIOS is older than 2000 add acpi=force to grub kernel command line -- After Installation of Ubuntu 6.10 laptop doesn't reboot. laptop doesn't shutdown in 6.10 too https://launchpad.net/bugs/69272 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
